| City: | Cliff Island, Maine |
| County: | Cumberland County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 7:59:42 PM |
| Population: | 72 [See All] |
| Area Code: | 207 |
| Classification: | PO Box |
| Coordinates: | 43.6967, -70.1031 |
| Land Area: | 0.832 sq mi |
| Quick Link: |
Cliff Island sits in Casco Bay, Maine, just 0.63 square miles of year-round community surrounded by water. Of the 156 homes here, 118 are used seasonally or occasionally. That's 76% of the housing stock. The population swings dramatically with the seasons: just 72 year-round residents compared to the summer influx.
The Cliff Island post office maintains 41 PO Boxes for 33 occupied households, a 1.24 adoption rate that includes both permanent residents and seasonal homeowners who maintain boxes year-round. This is a PO Box Only Zone. There's no alternative mail delivery across the island. Rural carrier routes serve some addresses, but PO Boxes remain the primary option for most islanders. With limited ferry access and no bridge, the post office serves as a critical link to the mainland.
The island's character is maritime Maine: Wharf Road (3 addresses), Beach Road (3 addresses), and Sunset Road (11 addresses, the most developed street) anchor the small road network. Fishermans Cove Road and Walker Point preserve the fishing heritage. The median age is 57 years. Most residents are older, with only 1 person under 18. This isn't a family vacation spot. It's a quiet summer retreat for established homeowners.
Median home values reach $838,500, well above Maine averages. Per capita income is $81,424. Of the 54 adults over 25, 54% hold bachelor's degrees or higher. The 33 year-round households maintain an unusual degree of isolation: 100% were born in the United States, and there are no recorded veterans. The year-round population appears to be self-selected for island life. Remote, aging, and affluent.
Use the following format for mailing to Cliff Island:
Recipient Name
PO Box [Number]
Cliff Island, ME 04019For addresses with rural carrier routes, street addressing may be available, but verify with the recipient. Ferry schedules affect mail delivery timing, especially during winter months.
Street names emphasize the island's maritime character: Wharf Road, Beach Road, Fishermans Cove Road, and Walker Point alongside traditional rural names like Sunset Road and Church Road.
ZIP Code 04019 has 72 residents and 33 households (average 2.18 persons per household). The median age is 57.0 years, significantly older than the state (45.1) and significantly older than the nation (38.8). The gender split is 48.6% male and 51.4% female, which is about the same as the national male share (49.1%), making this a female-majority area. Largest groups are White (94.4%, much higher than the national average of 61.6%) and Black or African American (0.0%, much lower than the national average of 12.4%); Hispanic or Latino residents make up 0.0%, which is much lower than the national average (18.7%).
Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship
| 2020 Population: | 72Source: Census DHC |
| 2024 ACS Population Estimate: | 93Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 86.5 people per sq mile |
| Average Income: | $89,712Source: Census ACS |
| Households: | 33Source: Census DHC |
| Average House Value: | $802,100Source: Census ACS |
| Persons Per Household: | 2.18Source: Census DHC |
| Average Family Size: | 2.80Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 72 | 69 | 0 | 0 | 0 | 0 | 14 | 23 | 23 | 42 | 47 | 55 | 54 | 93 |
| Decennial Census | 71 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 72 | -- | -- | -- | -- |
Median Age: 57
Male Median Age: 51.8
Female Median Age: 57.5
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 1 | 1 | 4 | 0 | 0 | 3 | 0 | 1 | 1 | 4 | 3 | 0 | 5 | 2 | 6 | 0 | 3 | 1 |
| Female | 3 | 0 | 0 | 3 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 5 | 0 | 4 | 8 | 5 | 0 | 1 |
| Total | 4 | 1 | 4 | 3 | 5 | 4 | 1 | 2 | 1 | 4 | 3 | 5 | 5 | 6 | 14 | 5 | 3 | 2 |
| White: | 68 | 100.00% |
| Black: | 0 | 0% |
| Hispanic:* | 0 | 0% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 68 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 35 | 48.61% | 51.8 years |
| Females: | 37 | 51.39% | 57.5 years |
| Total: | 72 | 100% | 57.0 years |
| Native, born in the United States: | 89 | 95.70% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 4 | 4.30% |
| Foreign born, not a U.S. citizen: | 0 | 4.30% |
| Total Population: | 93 | 100% |
| Total Native Population: | 89 | 95.70% |
| Total Foreign-born Population: | 4 | 4.30% |
In 2024, the Median household income is $89,712, which is considerably higher than the national median ($80,734), and above its 2019 pre-pandemic level by $89,712. Family households earn a median of $104,375 versus $88,269 for nonfamily households (a difference of $16,106). By gender, male median income is $0 and female is $0, which is considerably lower than the national female median ($55,274), with a current gap of $0 that has stayed about the same from 2011 to 2024. The labor-force participation rate is 39.8%, which is markedly below the national rate (63.5%). The unemployment rate is 0.0%, which is considerably lower than the national rate (5.2%). The largest occupation group is Management (45.5%).
Explore More: Income Over Time Household Income Employment Status By Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $93,558 | $98,359 | $0 | $85,625 | $89,712 |
| Median Family Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $104,375 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $93,077 | $97,969 | $80,729 | $85,833 | $88,269 |
| Median Male Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 33 | 39.76% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 50 | 60.24% |
| Total: | 83 | 100% |
| Management, business, science, and arts: | 15 | 45.45% |
| Service: | 0 | 0.00% |
| Sales and Office: | 0 | 0.00% |
| Natural resources, construction, and maintenance: | 7 | 21.21% |
| Production, transportation, and material moving: | 11 | 33.33% |
| Total Civilian Employed Population: | 33 | 100% |
In 2024, the median home value is $802,100, which is far above the national median ($332,700), and above its 2019 pre-pandemic level by $802,100. The median gross rent is $0, which is well under the national median ($1,413), and above its 2019 pre-pandemic level by $0. Of occupied housing, owners make up 69.09% (34.21% with a mortgage, 65.79% free-and-clear) and renters 30.91% - making this ZIP Code under national rental averages. The vacancy rate is 57.36%, which is markedly above the national rate (10.12%).
Explore More: Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $435,000 | $416,700 | $639,700 | $838,500 | $802,100 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 0 | 0.00% |
| $1,000 to $1,499: | 0 | 0.00% |
| $1,500 to $1,999: | 10 | 58.82% |
| $2,000 to $2,499: | 0 | 0.00% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 0 | 0.00% |
| No Rent: | 7 | 41.18% |
| Total: | 17 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 13 | 23.64% |
| Owner Occupied (free and clear, no mortgage): | 25 | 45.45% |
| Renter Occupied: | 17 | 30.91% |
| Total Occupied Housing Units: | 55 | 100% |
| Occupied Housing Units: | 55 | 42.64% |
| Vacant Housing Units (not graphed): | 74 | 57.36% |
| Total Housing Units: | 129 | 100% |
| Single-Family Units: | 129 | 100.00% |
| Multi-Family Units: | 0 | 0.00% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 129 | 100% |
In 2024, 54.20% of adults (25+) have a bachelor's degree or higher, which is far higher than the national rate (35.70%). High school or higher is 94.00%, which is comparable to the national rate (89.60%). The uninsured rate is 0.00%, which is comparable to the national rate (8.40%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.80%), down 100.00 percentage points since 2011. This points to a pronounced improvement in local conditions - rising incomes, firmer consumer demand, and a stronger tax base. Among residents ages 3+, the largest enrollment group is elementary (100.00%). College enrollment is 0.00%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.
Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment
| Less than 9th grade: | 0 | 0.00% |
| 9th to 12th grade, no diploma: | 5 | 6.02% |
| High school graduate (includes equivalency): | 17 | 20.48% |
| Some college, no degree: | 0 | 0.00% |
| Associate's degree: | 16 | 19.28% |
| Bachelor's degree: | 29 | 34.94% |
| Graduate or professional degree: | 16 | 19.28% |
| Total: | 83 | 100% |
| High school or higher: | 78 | 93.98% |
| Bachelor's degree or higher: | 45 | 54.22% |
| Private Insurance: | 66 | 64.71% |
| Public Insurance: | 36 | 35.29% |
| No Insurance: | 0 | 0.00% |
| Total: | 102 | 100% |
| Has Health Insurance: | 102 | 100.00% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 100.0% | 100.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0.00% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 10 | 100.00% |
| High school (grades 9-12): | 0 | 0.00% |
| College or graduate school: | 0 | 0.00% |
| Total: | 10 | 100% |
| Early Childhood: | 0 | 0.00% |
| K-12 (Primary & Secondary School): | 10 | 100.00% |
ZIP Code 04019 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 48Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 04019 is located in Cumberland County, Maine, within the Portland-South Portland, ME Metropolitan Statistical Area (CBSA 38860) and Maine's 1st Congressional District. This Metro area has a population of 514,098 people, about 0.01% of whom live in ZIP Code 04019. It covers 0.832 sq mi of land and a water area of 5.509 sq mi.
| CBSA Name: | Portland-South Portland, MESource: Census |
| CBSA Number: | 38860Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 514,098Source: Census |
| MSA: | Source: Census |
| Land Area: | 0.832 sq miSource: Census |
| Water Area: | 5.509 sq miSource: Census |
| Congressional District: | 01Source: USPS |
| Congressional Land Area: | 3285.52 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
ZIP Code 04019 is in the Portland, which serves grades Pre-Kindergarten thru 12th. There are 1 public school(s) in this ZIP Code, and we have located 3 private school(s). It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.